Chirevo chekuvanzika: Kuvanzika kwako kwakakosha kwazvo kwatiri
Izvo Zvivakwa zvechinongedzwa uye Clinical application yegiredhi-giredhi engineering plastics-ceramic chena peek zvinyorwa mukudzoreredzwa kwemazino
Isu tese tinoziva kuti dental post uye maCore zvinhu zvinodikanwa kuti uve nekukwira zvakanyanya uye unononoka kuramba Iyo elastic modulus yeiyo dental zvinyorwa zvinotora basa rinokosha mukuparadzira mukati meiyo dentin, iyo inoshanduka inokanganisa kuita kwekudzoreredza uye zino. Tumira zvinhu zvine modulus yechidiki padyo neiyo dentin inowanzunza kugoverwa kunonakidza, nekushushikana kwakanyanya pane iyo post
Kanda zviumbwa zvesimbi Fiber-yakasimbiswa manyorerwe
Kunyange zvakadaro, nekuda kwezvinhu zvakanakisa zvekushandisa, zvipfeko zveFRC zvave zvinonyanya kushandiswa zvinyorwa zvekutumira uye kugadziriswa, kunyangwe kuchine zvimwe zvikanganiso. Prefrizited FRC Post haigoni kufananidza chimiro chemidzi midzi yemugadziri
Mhedzisiro ichangobva kuitika inoratidza kuti zviyero zviri nani aesthetics kupfuura simbi alloys uye yakafanana neFRC kana ichishandiswa sepositi uye core zvinhu; Yayo yakaderera elastic modulus (3 kusvika ku4 GPA) inoenzaniswa neyakaenzana neinozensi (18.6 GPA), uye gfr-yakafanana neiyo elastic modulus yePeek (12 GPA) uye CFR-peek (18 GPA). Feya anogara akasimbisa kugona kweiyo oneek seimwe nzira yeFRC kana fiberglass muPost uye core kugadziriswa. Sekusvika preccast marunda ane hanya, vafudzi vepafuma uye mafaira efaira akarayira kuti ivate mutoro, uye maPeek airera akafarirwa zvakanyanya mune dzakasiyana siyana. uye kutadza nzira. Kunyangwe kudzoreredzwa uye zino dziri pasi pekunetseka kana kudzora kushushikana.
Saizvozvo, dzakatangira dzimba dzenzvimbo dzakaderedzwa kushungurudzika mukati meiyo post, post core, uye core core core positi yakaenzaniswa neye fergerglass kutumira, nepo usiratidze kukosha mukati meiyo dentin. Carbon fiber uye girazi fiber inogona kusanganiswa ne peekisingawedzere kuomarara kweshoko Kushushikana zvisizvo. FRC, GFR-PEEK uye POLYETTHERTEPETONE CONMNS.
Uyezve, kushushikana kwakanyanya kwakaitika muCFR-peek zvinyorwa uye kushushikana kwepasi kwakawanikwa kuFentin-post interface, kuratidzira mhedzisiro inodzivirira yakaiswa neiyo elastic modulus. Pamusoro pehunyanzvi hwekugadzira tekinoroji Izvo zvinofanotaurwa kuti chokwadi chemakoronga inopisa-inopisa ichave yakakwira kuenzaniswa neCAD / CAM PEKEK MAMBURA. Kubata kwepamusoro kwehukuru seyekutumira uye core zvinhu zvakaratidzwawo mu vitro uye mu vivo. Zvinyorwa zveVeki zvakaratidza kupokana kwepamusoro kana kufananidzwa nePolymer-inopinda muCeramic Iyo bracture mutoro wepeek akaderera zvakanyanya pane iyo yeiyo nickel-chromium (nicr) inokatyamadza mauto, uye ine hanoceramic composite uye girazi fiber michina. Magirazi egirazi ane maronda ekurovera zvakanyanya
Vazhinji vepeek murwi kutadza vanofanirwa kupfeka uye kubvarura murwi uye musimboti uye zvinogadziriswa. Peek akaedzwa mumatombo emhando yemazino emubatanidzwa, asi zvibodzwa zvevanowanikwa kuti vawane zvimiro zvakashata kupfuura zvimiti fiberglass kana uchigadzirisa caals yakadzvanywa. Peek iri kuwedzera kuwedzerwa pakati pevairemberi sechiputumu uye chakapinza nekuda kweiyo aesthetics uye mechanics zvivakwa. Iko kugadziriswa kwakasarudzika uye mhedzisiro yacho inogutsa. Mukupedzisa, kune humbowo hwekukura hwekugona kwehukuru seposvo uye core zvinhu, asi kunyangwe peek inogona kuvandudza kuponeswa kwenguva refu uye kudzoreredzwa kunoda kuwedzera kuongorora.
November 14, 2024
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November 14, 2024
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Chirevo chekuvanzika: Kuvanzika kwako kwakakosha kwazvo kwatiri
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Chirevo chekuvanzika: Kuvanzika kwako kwakakosha kwazvo kwatiri